单项选择题

A．Because they are made from beef.
B．Because they are cheaper than any other kind of food.
C．Because they are served quickly and at a low price.
D．Because hamburger is the only fast food in America.
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单项选择题
A．He has trouble stopping.B．There are too many rocks.C．Going uphill is difficult.D．There are too many curves.
A．He has trouble stopping.
B．There are too many rocks.
C．Going uphill is difficult.
D．There are too many curves.
单项选择题
A．She got a weekend job at the beach.B．She often goes to the beach.C．She misses the trips to the beach she used to take.D．Her home is near the beach.
A．She got a weekend job at the beach.
B．She often goes to the beach.
C．She misses the trips to the beach she used to take.
D．Her home is near the beach.
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